package thread;

public class demo12 {
    static class Counter {
        public static int count = 0;

        synchronized public  void add() {
              {
                count++;
            }
        }
    }


    public static void main(String[] args) throws InterruptedException {
        Counter c = new Counter();
        Thread t1 = new Thread(() -> {
            for (int i = 0; i < 50000; i++) {
                c.add();
            }
        });
        Thread t2 = new Thread(() -> {
            for (int i = 0; i < 50000; i++) {
                c.add();
            }
        });
        t1.start();
        t2.start();
        t1.join();
        t2.join();
        System.out.println(Counter.count);

    }
}
